include/osl/pipe.h

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 /*
  21  * This file is part of LibreOffice published API.
  22  */
  23
  24 #ifndef INCLUDED_OSL_PIPE_H
  25 #define INCLUDED_OSL_PIPE_H
  26
  27 #include "sal/config.h"
  28
  29 #include "osl/security.h"
  30 #include "rtl/ustring.h"
  31 #include "sal/saldllapi.h"
  32
  33 #ifdef __cplusplus
  34 extern "C" {
  35 #endif
  36
  37 typedef enum {
  38     osl_Pipe_E_None,                    /*< no error */
  39     osl_Pipe_E_NotFound,                /*< Pipe could not be found */
  40     osl_Pipe_E_AlreadyExists,           /*< Pipe already exists */
  41     osl_Pipe_E_NoProtocol,              /*< Protocol not available */
  42     osl_Pipe_E_NetworkReset,            /*< Network dropped connection because of reset */
  43     osl_Pipe_E_ConnectionAbort,         /*< Software caused connection abort */
  44     osl_Pipe_E_ConnectionReset,         /*< Connection reset by peer */
  45     osl_Pipe_E_NoBufferSpace,           /*< No buffer space available */
  46     osl_Pipe_E_TimedOut,                /*< Connection timed out */
  47     osl_Pipe_E_ConnectionRefused,       /*< Connection refused */
  48     osl_Pipe_E_invalidError,            /*< unmapped error: always last entry in enum! */
  49     osl_Pipe_E_FORCE_EQUAL_SIZE = SAL_MAX_ENUM
  50 } oslPipeError;
  51
  52 /** Pipe creation options.
  53
  54     A pipe can either be opened, or a new pipe can be created and opened.
  55 */
  56 typedef sal_uInt32 oslPipeOptions;
  57 #define osl_Pipe_OPEN        0x0000     /*< open existing pipe */
  58 #define osl_Pipe_CREATE      0x0001     /*< create pipe and open it, fails if already exists */
  59
  60 typedef struct oslPipeImpl * oslPipe;
  61
  62 /** Create or open a pipe.
  63
  64     @param[in] strPipeName  pipe name
  65     @param[in] Options      create or open the pipe
  66     @param[in] Security     pipe creator
  67
  68     @returns nullptr on failure, otherwise returns the pipe handle
  69
  70     @see osl_closePipe
  71 */
  72 SAL_DLLPUBLIC oslPipe SAL_CALL osl_createPipe(
  73         rtl_uString *strPipeName, oslPipeOptions Options, oslSecurity Security);
  74
  75 /** Decreases the refcount of the pipe.
  76
  77     If the refcount drops to zero, the handle is destroyed.
  78
  79     @param[in] Pipe         pipe handle
  80
  81     @see osl_acquirePipe
  82  */
  83 SAL_DLLPUBLIC void    SAL_CALL osl_releasePipe(oslPipe Pipe);
  84
  85 /** Increases the refcount of the pipe.
  86
  87     @param[in] Pipe         pipe handle
  88
  89     @see osl_releasePipe
  90  */
  91 SAL_DLLPUBLIC void    SAL_CALL osl_acquirePipe(oslPipe Pipe);
  92
  93 /** Close the pipe.
  94
  95     Any read, write or accept actions stop immediately.
  96
  97     @param[in] Pipe         pipe handle
  98
  99     @see osl_createPipe
 100  */
 101 SAL_DLLPUBLIC void    SAL_CALL osl_closePipe(oslPipe Pipe);
 102
 103
 104 SAL_DLLPUBLIC oslPipe SAL_CALL osl_acceptPipe(oslPipe Pipe);
 105
 106 SAL_DLLPUBLIC sal_Int32 SAL_CALL osl_sendPipe(oslPipe Pipe, const void* pBuffer, sal_Int32 BufferSize);
 107 SAL_DLLPUBLIC sal_Int32 SAL_CALL osl_receivePipe(oslPipe Pipe, void* pBuffer, sal_Int32 BufferSize);
 108
 109 /** Reads blocking from the pipe.
 110     @return Number of read bytes. If less than BufferSize, the pipe was closed.
 111  */
 112 SAL_DLLPUBLIC sal_Int32 SAL_CALL osl_readPipe( oslPipe Pipe, void *pBuffer, sal_Int32 BufferSize );
 113
 114 /** Writes blocking onto the pipe.
 115     @return Number of written bytes. If less than BufferSize, the pipe was closed.
 116  */
 117 SAL_DLLPUBLIC sal_Int32 SAL_CALL osl_writePipe( oslPipe Pipe, const void *pBuffer, sal_Int32 BufferSize );
 118
 119 SAL_DLLPUBLIC oslPipeError SAL_CALL osl_getLastPipeError(oslPipe Pipe);
 120
 121 #ifdef __cplusplus
 122 }
 123 #endif
 124
 125 #endif // INCLUDED_OSL_PIPE_H
 126
 127 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */